- Vision & Eye Care
Glass-Coatings for Your Eyes to Look and See Better
Until recently eyeglasses were considered to be messy, troublesome and hazardous for personality. But now a new thought has arisen fortunately for chronic eyeglass-wearers that glasses improve the wearer’s personality! Example? See “Parks and Recreation” star Rashida Jones, famous for her stunning looks adorned with her black glasses! To add to it, new improvements have been made into the field of manufacturing of eyeglasses, which give them better looks and performance, and comfort and relaxation to the wearer’s eyes. One of these advancements is different types of coatings. If you are thinking of buying new eyeglasses think of getting them coated with one of these coatings, so as to get some extra benefits.
Anti-reflective or anti-glare coating, also called AR coating, is a layer, microscopically thin, given on the glasses to eliminate reflections from the outer and inner surfaces of the eyeglass lenses. This helps in making people focus on your eyes and not getting distracted by the reflections from your glass lenses. The coating also eliminates the light reflected from the lenses. This helps you in having better vision during night driving and reading and while using computer.
AR coating is recommended nowadays for all types of glasses, but especially for high-index and polycarbonate lenses which reflect more light than the usual plastic or glass lenses in case of no AR coating. Even aspheric lenses reflect more light than regular lenses and so, AR coating is highly recommended for them. Another useful application of this coating is on the backside of sunglasses which protects your eyes from bounce-back reflection when you face away from the sun.
Repair Scratched Lense For Glasses
Until recently, there were no glasses which were free from scratches! But now you can get freedom from these disturbing lines with a special treatment of scratch-resistant coating. This coating is given on the outer and inner sides of the lenses of glasses and gives a much harder structure to the lenses, thus making them more resistant to scratches. So, they protect your glasses when you drop them down on the floor or clean them frequently with tissue papers. This coating is particularly beneficial for kids’ glasses.
These days the majority of eyeglass lenses, including polycarbonate and Trivex lenses and high-index lenses have scratch-resistant coating integrated in them.
However in some cases, scratch-resistant coating is optional and so, you should ensure with your optician that you want it for your glasses. Also, ask for the warranty period of glasses with scratch-resistant coating and those without it.
Remember that even the finest scratch-resistant coating cannot prevent wear and tear of your glasses. So, to protect them you should keep them in a cushioned box when not in use and clean them using a microfiber cloth and a cleaning solution recommended by the optician.
Also, don’t believe in products that claim to repair scratches. They only fill in the scratches but don’t remove them to give your glasses a new look.
Eyeglass-wearers living in colder regions often face problems with fog accumulating on their glasses. This is really frustrating and can be a safety issue because it limits the ability to see till the fog clears. Lens fogging can be particularly dangerous for people like police officers, drivers and first responders to critical situations. But now there is at least one company (Opticote) that has made a permanent coating to eliminate this problem. The coating is called Fog Free and it eliminates the condensation of moisture on glass lenses which gives fogging. Thus your lenses remain clear even when you transfer from cold to warm environment. Fogging episodes for lenses during sports and other situations too are eliminated with this coating.
The coating can be applied to polycarbonate, plastic as well as other eyeglass lenses, even if they are high-index, and Transition photochromic lenses.
Optifog – Essilor introduced an eyeglass lens line named Optifog in October 2011 which the company claimed to be “breakthrough lenses with an exceptional anti-fog property.” This property is activated by using a drop of Optifog Activator to either side of the lens and then wiping the lens using a microfiber cloth to spread the liquid evenly throughout the lens surfaces. The treatment keeps the lens free from fog for about a week, as claimed by Essilor. The principle behind this, according to the company, is the solution spreads the tiny droplets gathering on the lenses due to the colder temperature of the lenses uniformly and thus making those droplets invisible. Optifog lenses come in polycarbonate, plastic and high-index plastic substances, having or not having he Crizal anti-reflective coating of Essilor.
This is another useful treatment given to the lenses to block ultraviolet (UV) light. It is an invisible dye. Same as the sunscreen that prevents the sun’s UV rays from damaging your skin, ultraviolet treatment for eyeglass lenses prevent these rays from harming your eyes. Over-exposure to UV rays is considered to be a cause of retinal damage, cataract and other eye disorders.
The usual plastic eyeglass lenses actually block most of the UV light, but an ultraviolet treatment to the glasses increases UV protections to 100% which gives added safety. Other eyeglass materials like most high-index plastic and polycarbonate have 100% UV protection built-in and therefore, need no additional lens treatment. Even photochromic lenses block sun’s UV rays 100% and so, need no UV treatment.